Elevating device.



No. 811,968. PATBNTBD PEB. 6, 1906. J. C. STIRLING.

ELEVATING DEVICE.

APPLIoATroN FILED JULY 25.1905.

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JOSEPH O.,STIRL1NG, OF BAKERSTOWN, PENNSYLVANIA, ASSIGNOR, BY DTREOT AND MESNE ASSIGNMENTS, OF TWO-SIXTHS TO D. 11T. STIRLING AND rVVO-SIXIHS TO J. RITTS, OF G-LADE MILLS, PENNSYLVANIA.

IELIE't/ATIING DEWIIIE.

Specification of Letters Patent.

'Patented Feb. 6, 1906.

Application filed July 25,1905. Serial No. 271,198.

To a/ZZ whom t nfl/ty concern.

Be it known that 1, J osnrn C. STIRLING, a citizen of the United States oi America, residing at Bakerstown,I in the county of Allee glieny and State of Pennsylvania, have invented certain new and useful Improvements in Elevating Devices, of which the 'following is a speciiication, reference being had therein to the accompanying drawings.

This invention relates to certain. new and useful improvements in elevating devices, and relates more particularly to a device adapted to be used in connection with an oilwell rigging.

The invention is primarily intended to be used in connection with the band-wheel and rope of an oil-well rigging, and in this connection the invention aims to provide novel means for elevating or lifting the rope from the band-wheel to prevent the wheel and rope Yfrom being worn by the irictional contact ci' the rope when it is not being used. To this end l have devised a novel form of elevating device which is adapted to be actuated i'rom the derrick of the oil-well rigging,

andv by the construction oi' my improved device the rope which passes over the bandwheel can be elevated or lowered as it is desired.

With the above and other objects in view, which will more readily appear as the nature oi the invention is better understood, the same consists in the novel construction, come bination, and arrangement of parts to be hereinafter more fully described, illustrated, and then claimed.

The preferred embodiments are illustrated in the accompanying drawings, in which- Figure 1 is a side elevation of' an oil-well rigging equipped. with ixny improved elevating device. Fig. 42 is an enlarged fragmentary plan view of the same, and Fig. 3 is a perspective view of the elevating device upon an enlarged scale.

The invention involved in this application is analogous and has relation to the invention involved in the application of David W. Stirling and Jacob Ritts, for improvements in devices for oil-wells, iiled August 3, 1905, Serial No. 27 2 ,562 and in which I am the owner by virtue of assignment of a part interest, the said. David W. Stirling and Jacob Ritts being the owner by virtue ol" assignment of a part interest in the present invention.

ln the accompanying drawings the reference-numeral 1 designates the band-wheel of an oil-well rigging, which is journaled in suit-1 able fran'iework or bearings 2. Over this band-wheel passes a rope 3, which is employed. for elevating the tools or bits em.- ployed for drilling a well. The rope 3 is only employed when it is desired to raise and lower the drilling-tools of a well, a conventional 'lorm of derrick 4 being employed to accomplish this result in. connection with the band-wheel and the rope The band-wheel .is revolved by suitable mechanism, such as an engine, and it has been the practice to permit the rope 3 to lie upon the band-wheel during its operation when the rope is not in use. Consequently the frictional engagement ol the rope 3 with the band-wheel'tended to wear the wheel and the rope. My invention resides in a novel form. oi' elevating device which l employ for raising the rope 3 out of engagement with. the band-Wheel 1 when it is not to be used. The device consists of a track 5, one end 6 of which lies out of alinement with the opposite end 7 of the track, but in the same plane, thus providing a curved elevating portion 8 in the track. The end 7 of the track 5 is suitably supported by the housing of the band-wheel, a hanger 9, which is carried by the derrick 4, being provided to support the end 6. The track is so arranged that the end 7 oi: the track will be directly above the band-wheel 1, while the lower end of the track will extend 'forwardly toward the derrick, as clearly .illustrated in F ig. 1 of the drawings.

Upon the track 5 1 mount two hangers 11 and 12, each hanger consisting of standards 14 14, the lower ends of which support a crosshead 1.5, having its ends bent upwardly, as at 16 1.6. Between the standards 14 14 are journaled rollers 17. and 18, and the rollers 17 are adapted to support the hangers upon the track 5. The standards 14 14 oi the hanger 12 are of a greater length than the standards of the hanger 11, wherebya rod 19 can be piv- IOO otally connected to the upper ends of the standards 14 14, as at 20. The rod 19 is adapted to extend forwardly along the housing of the oil-well rigging and is adapted to be pivotally connected, as at 21, to a lever 22, which is pivotally mounted in a suitable support 23 Within the derrick 4 of the oil-well rigglng. l

The hangers 11 and 12 are adjustably conn ected together by a bar 24, this bar having slots 25 26 formed therein, through which pass headed pins 27 27, employed for retaining the bar 24 in engagement with the hangers 11 and 12.

The rope 3 of the band-wheel 1 is adapted to lie upon one side of the cross-heads 15 15 of the hangers 11 and 12 and be supported upon the hangers by the upwardly-bent ends of the crosseheads. When the rope 3 is not being used, the lever 22 is manipulated to force the hangers 11 and 12 upon the elevated portion of the track 5, these hangers being adapted to elevate therope 3 above the bandwlieel 1, whereby it will not frictionally contact with the same.

In dotted lines of Fig. 3 of the drawings I have illustrated the position of the hangers 11 and 12 when the rope 3 is being used, while in full lines I have the normal position of the hanOers when the rope is elevated above the band-wheel. In operation when the rod 19 is forced forwardly by the lever 22 the hanger 12 is moved upthe curved portion 8 of the track 5 toward the end 7 of the track, and as the hanger 11 is connected to the hanger 15 by the bar 24 this hanger will be carried toward the end 7 of the track and be elevated similar to the hanger 12.

The elevating device maybe constructed of light and durable metal; but I do not care to confine myself to any specific material from which it may be made.

What I claim, and desire to secure by Letters Patent, is

1. In a device of the character described,

the combination with a b and-wheel j ournaled ers along the track and thereby elevate the ro e.

l2. Ina device of the character described the combination with a 4band-wheel and a rope carried by said band-wheel, ofhangers suspended upon said band-wheel and adapted to engage said rope, a curved track arranged adjacent the bandwvheel, said hangers being carried on said track and said track serving to elevate said hangers above said band-wheel, and means to move said hangers.

3. In a device of the character described the combination with a band-wheel journaled in stationary bearings, a rope passing over said band-wheel, a track arranged over the band-wheel, said track having its ends at different levels, a hanger suspended from said track and engaging said rope, a lever arranged at a point removed from said track and connections between said lever and said hanger whereby the movement of the lever will move the hanger to different positions on the track and thereby raise or lower said rope.

4. In a device of the character described the combination of a rigid track having a 

